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23730894 = 2351123193
BaseRepresentation
bin101101010000…
…1101011001110
31122122122200000
41122201223032
522033342034
62204345130
7405465165
oct132415316
948578600
1023730894
1112439410
127b451a6
134bbb665
14321a3dc
15213b599
hex16a1ace

23730894 has 96 divisors (see below), whose sum is σ = 61012224. Its totient is φ = 6842880.

The previous prime is 23730893. The next prime is 23730899. The reversal of 23730894 is 49803732.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23730893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122862 + ... + 123054.

It is an arithmetic number, because the mean of its divisors is an integer number (635544).

Almost surely, 223730894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23730894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30506112).

23730894 is an abundant number, since it is smaller than the sum of its proper divisors (37281330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23730894 is a wasteful number, since it uses less digits than its factorization.

23730894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 23730894 is about 4871.4365437723. The cubic root of 23730894 is about 287.3677536705.

The spelling of 23730894 in words is "twenty-three million, seven hundred thirty thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 9 11 18 22 23 27 33 46 54 66 69 81 99 138 162 193 198 207 243 253 297 386 414 486 506 579 594 621 759 891 1158 1242 1518 1737 1782 1863 2123 2277 2673 3474 3726 4246 4439 4554 5211 5346 5589 6369 6831 8878 10422 11178 12738 13317 13662 15633 19107 20493 26634 31266 38214 39951 40986 46899 48829 57321 61479 79902 93798 97658 114642 119853 122958 146487 171963 239706 292974 343926 359559 439461 515889 719118 878922 1031778 1078677 1318383 2157354 2636766 3955149 7910298 11865447 23730894